2198040 has 64 divisors (see below), whose sum is σ = 7106400. Its totient is φ = 540672.

The previous prime is 2198039. The next prime is 2198057. The reversal of 2198040 is 408912.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2198040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856 + ... + 2264.

2^2198040 is an apocalyptic number.

2198040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2198040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3553200).

2198040 is an abundant number, since it is smaller than the sum of its proper divisors (4908360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2198040 is a wasteful number, since it uses less digits than its factorization.

2198040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2198040 is about 1482.5788343289. The cubic root of 2198040 is about 130.0205095846.

The spelling of 2198040 in words is "two million, one hundred ninety-eight thousand, forty".